Buick Regal HVAC Blower Motor: A Guide for 2006-2010 Models
If you're looking for an HVAC blower motor for a 2006-2010 Buick, you likely have a LaCrosse, not a Regal.
- Verify you own a Buick LaCrosse (2005-2009), as the Regal was not made in these years for the US market.
- Symptoms like intermittent operation or the fan staying on may be related to a TSB requiring a capacitor, not a full motor replacement.
- Replacing the blower motor resistor at the same time as the motor is highly recommended to prevent premature failure.
- This is a simple DIY repair located under the passenger side dashboard, accessible by removing an insulator panel.
Is Your Buick a Regal or a LaCrosse?
Before you buy any parts, it's important to know your exact vehicle. The Buick Regal was not sold in the North American market for the model years 2005 through 2010. If you have a mid-size Buick sedan from this period, you most likely own a 2005-2009 Buick LaCrosse, which replaced the Regal until its reintroduction in 2011. This guide provides information for the HVAC blower motor that fits the 2005-2009 Buick LaCrosse.
Common Symptoms of a Failing Blower Motor
A failing blower motor in your LaCrosse will usually give you a few warning signs. The most obvious is no air coming from the vents at any fan speed. You might also hear unusual noises, like a grinding, squealing, or rattling sound from the passenger side dashboard area. Sometimes, the fan will only work on the highest setting, which often points to a bad blower motor resistor rather than the motor itself. Another symptom can be a fan that works intermittently or even stays on after you turn the car off.
Known Issue: Blower Motor Stays On or is Intermittent
A Technical Service Bulletin (TSB #05-01-39-001A) was issued for the 2005 LaCrosse for an intermittent or inoperative blower motor, or a blower motor that continues to run after the key is off. The cause was identified as a possible voltage spike from the wiper motor affecting the blower motor control module. The official fix is to install a capacitor at the control module connector, not to replace the entire motor or module. If you experience these specific symptoms, it's worth investigating this TSB with your mechanic.
Choosing the Right Aftermarket Blower Motor
When replacing the blower motor, you have several options. The original OEM part is always an option, but quality aftermarket parts can offer significant savings. For a vehicle like the 2005-2009 LaCrosse, the aftermarket provides a wide range of choices.
- Premium Aftermarket (e.g., Four Seasons, UAC, SKP, TYC): These brands are well-known in the HVAC parts industry. They offer products that are designed to be direct-fit replacements and are often tested for performance and durability. They provide a good balance of quality and price, making them a popular choice for daily drivers.
- Standard Aftermarket/Store Brands (e.g., Duralast, Replacement): Brands like Duralast from AutoZone or other store-specific labels offer a more budget-friendly option. These parts meet basic requirements and are a good choice if cost is the primary concern.
Pro Tip: When you replace the blower motor, it's a good idea to also replace the blower motor resistor or control module. A failing motor can draw too much current and damage the new resistor, and a faulty resistor can damage a new motor. Many brands sell these parts together as a kit.
Cost of Replacing a Buick LaCrosse Blower Motor
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Blower Motor | $45 - $110 |
| New Aftermarket Blower Motor Resistor/Module | $40 - $70 |
| Shop Labor | $60 - $85 |
| Total Estimated Cost (DIY) | $45 - $180 |
| Total Estimated Cost (Installed) | $105 - $265 |
Cost estimates are based on market averages and may vary by location and parts supplier.
Frequently Asked Questions
Can I replace the blower motor myself?
Yes, for the 2005-2009 LaCrosse, this is a very DIY-friendly job. The blower motor is located under the passenger side of the dashboard and is typically held in by a few screws. You will need to remove an insulator panel to access it, but it does not require special tools.
Should I replace the resistor at the same time as the motor?
It is highly recommended. The blower motor and resistor work together, and the failure of one can stress the other. Replacing both at the same time ensures the longevity of the new parts and prevents you from having to do the job twice.
Is there a recall for the HVAC system on this car?
There are no recalls specifically for the blower motor on the 2005-2009 Buick LaCrosse. There was a recall for the 2011 LaCrosse related to the HVAC control module software, but this does not apply to the 2005-2009 generation.
What is the difference between a blower motor and a blower motor resistor?
The blower motor is the fan that moves the air. The blower motor resistor (or control module for automatic climate control) is the electrical component that controls the fan's speed. A common sign of a bad resistor is when the fan only works on the highest speed setting.
Technical Specifications
OEM Part Numbers: 89018653 89018778
Fits 2005-2009 Buick LaCrosse. The blower motor is located in the HVAC housing under the passenger side of the dashboard. It is secured with three screws, typically 5.5mm. The associated resistor/control module is mounted nearby.
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Buick Regal: